They are obviously very, very cheap and that's why I'm a abit skeptical about buying them. So has anybody had any experience or came across them before? If so could you let me know if they're worth buying?

For that kind of money, get the K-Micro Bullet omnidirectional condensers. I paid a very similar amount for my pair (after reading the reviews in 'Sound on Sound') and I'm very, very pleased with mine. They are really excellent.